"Ed Show" host Ed Schultz took on the powerful U.S. Chamber of Commerce Wednesday night in the wake of allegations that the business lobby is spending foreign money on political attack ads in violation of federal election laws.

"I'm going to say this loud and clear," Schultz said, with a graphic reading "Anti-American Money Bomb!" in the foreground. "It is flat-out dangerous that we don't know where the money is coming from and foreign countries are influencing our electoral process."